Update default cursor style in jquery-ui.sass

Author: lynkos

assets/stylesheets/sass/components/jquery-ui.sass

@@ -15,7 +15,7 @@ $resize-dim: 7px
     z-index: 100
 
   &-state-disabled
-    cursor: default !important
+    cursor: vars.$default-cursor !important
     pointer-events: none
 
   &-icon